How to make Stuffed Bitter Melon in Lotus SoupMix all the ingredients for the stuffing and stuff them into the bitter melon gourd pieces. That's it, you're done with that part. For the broth, high-heat oil and toss in the garlic and lemongrass just to infuse flavors. Then add your broth, lotus root, and fish sauce. Cover and bring to a boil. Uncover and turn heat to medium. Carefully place your stuffed bitter melons in the broth, recover and simmer for 15-20 minutes.